Soft Mod

Hi, have a question. I am obviously a noob. I soft modded my wii the other night. It is version 4.2. black wii,
everything went fine with the mod except for the last part. when the tutorial I was following told me to
go to wad manager, which when I downloaded all the files it gave me wad manager 1.5. when I tried to
load iso249 like it told me too, it gets error that says.
"Retrieving file error. RET -1.

Please help. Did I do something wrong or what. I tried different files but still same error and some I tried just froze up my wii
and then my wii remote would not work. Hopefully my wii is ok. Could someone please help put me in the right direction. any
help would greatly be appreciated. Thanks.